feat: 個別のお知らせにリンクで飛べるように (#13885)

* feat(announcement): 個別のお知らせにリンクで飛べるように (MisskeyIO#639)

(cherry picked from commit f6bf7f992a78e54d86a4701dbd1e4fda7ef4eb27)

* fix

Co-authored-by: まっちゃとーにゅ <17376330+u1-liquid@users.noreply.github.com>

* fix

Co-authored-by: まっちゃとーにゅ <17376330+u1-liquid@users.noreply.github.com>

* 一覧ページではお知らせpanel全体を押せるように

* お知らせバーは個別ページに飛ばすように

* Update Changelog

* spdx

* attempt to fox test

* remove unnecessary thong

* `announcement` → `announcements/show`

* リンクを押せる場所をタイトルと日付部分のみに変更

---------

Co-authored-by: まっちゃとーにゅ <17376330+u1-liquid@users.noreply.github.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/packages/backend/src/server/api/endpoints/announcements/show.ts b/packages/backend/src/server/api/endpoints/announcements/show.ts
new file mode 100644
index 0000000000..6312a0a54c
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/announcements/show.ts
@@ -0,0 +1,54 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { EntityNotFoundError } from 'typeorm';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { AnnouncementService } from '@/core/AnnouncementService.js';
+import { ApiError } from '../../error.js';
+
+export const meta = {
+	tags: ['meta'],
+
+	requireCredential: false,
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'Announcement',
+	},
+
+	errors: {
+		noSuchAnnouncement: {
+			message: 'No such announcement.',
+			code: 'NO_SUCH_ANNOUNCEMENT',
+			id: 'b57b5e1d-4f49-404a-9edb-46b00268f121',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		announcementId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['announcementId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private announcementService: AnnouncementService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			try {
+				return await this.announcementService.getAnnouncement(ps.announcementId, me);
+			} catch (err) {
+				if (err instanceof EntityNotFoundError) throw new ApiError(meta.errors.noSuchAnnouncement);
+				throw err;
+			}
+		});
+	}
+}